Phonetic transliteration:
玛 (mǎ) for 'Mar-' and
芝 (zhī) for the 'ge/dge' coda.
玛 is the standard character for 'Ma-' onsets in Western female names (compare
玛丽 Mary,
玛丽亚 Maria). The most prominent bearer in Chinese subtitle media is Marge Simpson (
玛芝·
辛普森) from 《
辛普森一家》 (The Simpsons).